import copy
dictionary = {"卷心菜":"cabbage","午餐": ["lunch", "nooning"]}
dictionary1 = dictionary
dictionary2 = dictionary.copy()
dictionary3 = copy.deepcopy(dictionary)
dictionary["卷心菜"] = "pamphrey"
dictionary["午餐"].remove("nooning")
print(dictionary)
print(dictionary1)
print(dictionary2)
print(dictionary3)

dictionary = {
     "卷心菜": "cabbage",
     "午餐": "lunch",
     "机器人": "robot",
     "天空": "sky",
      "花": "flower"
 }
print("中英文字典中所有中文词组及其对应的英文单词：")
for item in dictionary.items():
     print(item)
print("中英文字典中所有中文词组：")
for chinese in dictionary.keys():
     print(chinese, end=" ")
print("\n中英文字典中所有英文单词：")
for english in dictionary.values():
     print(english, end=" ")